1. He is afraid about / of dogs. 2. Mike was satisfied with / of his exam results. awol tray bib
3. Jane was angry for / with her sister.
4. She was envious in / of Mary because she bought a new bag. ail
5. Students were excited and happy about / of the trip to Moscow.
6. We were tired of / with waiting for him. прівw
7. He worried in / about his maths test. ri ol.og
8. My parents were concerned about / of my school results. avad
9. I am frightened of / with snakes.
10. She is always nervous with / about being late.

1. He is afraid of dogs.
Explanation: The preposition "of" is used to show what someone is afraid of. In this case, he is afraid of dogs.

2. Mike was satisfied with his exam results.
Explanation: The preposition "with" is used to show the cause or reason for someone's satisfaction. In this case, Mike was satisfied with his exam results.

3. Jane was angry with her sister.
Explanation: The preposition "with" is used to show the target of someone's anger. In this case, Jane was angry with her sister.

4. She was envious of Mary because she bought a new bag.
Explanation: The preposition "of" is used to show who or what someone is envious of. In this case, she was envious of Mary.

5. Students were excited and happy about the trip to Moscow.
Explanation: The preposition "about" is used to show the reason for someone's excitement or happiness. In this case, the reason for their excitement and happiness is the trip to Moscow.

6. We were tired of waiting for him.
Explanation: The preposition "of" is used to show the cause or reason for someone's tiredness. In this case, they were tired because they were waiting for him.

7. He worried about his maths test.
Explanation: The preposition "about" is used to show the reason for someone's worry. In this case, he was worried about his maths test.

8. My parents were concerned about my school results.
Explanation: The preposition "about" is used to show what or who someone is concerned about. In this case, they were concerned about my school results.

9. I am frightened of snakes.
Explanation: The preposition "of" is used to show what someone is frightened of. In this case, I am frightened of snakes.

10. She is always nervous about being late.
Explanation: The preposition "about" is used to show the reason for someone's nervousness. In this case, she is always nervous because she is afraid of being late.